A183546 Number of n X n 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors

0, 15, 583, 95101, 63868351, 177385265619, 2043774880960645, 97587614786720584857

Offset

1,2

Comments

Diagonal of A183554

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for 3X3
..1..1..1....0..1..1....1..1..1....1..1..1....2..0..0....1..1..1....0..0..0
..1..1..0....0..0..1....1..1..1....2..2..1....2..2..0....1..0..0....0..0..2
..1..1..0....0..0..1....1..0..0....0..0..1....1..1..1....0..0..0....2..2..2

Crossrefs

Sequence in context: A027534 A001236 A263887 * A179895 A343074 A232291

Adjacent sequences: A183543 A183544 A183545 * A183547 A183548 A183549

Keyword

nonn

Author

R. H. Hardin Jan 05 2011

Status

approved